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Measuring Range
and Weather Monitor II stations
Readings above 5
Silicone is also more chemically resistant and more resilient than either PVC or natural rubber
12VDC for safe and easy power connection
Weather Ball Barometer TP7D-050-EW-SM Measuring RangeThe Weather Ball Barometer indicates changes in air pressure quickly and accurately. Torricelli (1608 1647) proved that air pressure was subject to variations and in 1643 he devised the first barometer. Goethe, the famous German playwright, who enjoyed scientific experiments, later developed his own simple, but effective barometer using the principles established by Torricelli. This barometer is based on Goethes design. The ball is filled with colored